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Races · Senate · 2024 · Pennsylvania
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Senate · class I · open seat

Bob Casey Jr. vs Dave McCormick

Lean DD +2.5 forecast· 136 polls · 0 markets
Model's final pre-election call · win probabilitypoliagg-v34 · final pre-election call
66% Jr. (D)
34% McCormick (R)
R+15R+5TIEDD+5D+15
Model's predicted final margin D +2.5 · 80% CI R+9.5 → D+14.5
Actual result R+0.2 · backtest (race already called)
Momentum
insufficient data
Tipping-point P
0.0%
Decisive for chamber control
Market · D-side
Cross-platform consensus
News articles · 30d
no recent coverage
Where this race stands
Verified

Tilt R · model 66% D

No recent polls or markets for this race. PVI baseline (R+2) suggests Tilt R.

The poliagg-v34 ensemble forecasts D+2.5 with an 80% CI ranging from R+9.5 (10th pctile) to D+14.5 (90th pctile), giving D a 66% chance of winning.

CITATIONS · tilt-r
Forecast · poliagg-v34
Predicted final margin
D +2.5
80% CI: R +9.5D +14.5 · win prob 66%
R+30R+15TIEDD+15D+30
Quality · inputs
Data quality · high
Polls used136
Days to electionpassed
Actual resultR+0.2
Residual σ6.00pt
Generated7/1/2026

Polling average

25303540455055CASEY 47.9MCCORMICK 46.2APR '23JAN '24NOV '24
Weighted, plus each pollster's measured bias subtracted before averaging.

All polls · 136 results

strongpositiveinfocautionflag
DatePollster · trust signalsn · popLeanBias · trackvs ratersD · R
Nov 3, 24AtlasIntel+2For · AtlasIntel1,840 · LVNEUTRALD +0.330 tracked-4.0r lean49 · 47
Nov 3, 24SurvationFor · Survation929 · LVNEUTRAL49 · 42
Nov 2, 24Research Co.+1For · Research Co.450 · LVNEUTRALD +1.450 tracked-0.7aligned48 · 46
Nov 2, 24Patriot PollingFor · Patriot Polling903 · RVR-LEANR +1.410 tracked-3.2r lean50 · 49
Nov 2, 24The Trafalgar GroupFor · The Trafalgar Group1,089 · LVR-LEANR +3.553 tracked-2.6r lean46 · 47
Nov 1, 24InsiderAdvantage+1For · InsiderAdvantage800 · LVR-LEANR +2.838 tracked-0.5aligned48 · 47
Nov 1, 24AtlasIntel+2For · AtlasIntel2,049 · LVNEUTRALD +0.330 tracked-4.0r lean49 · 47
Nov 1, 24Emerson College+1For · Emerson Polling1,000 · LVNEUTRALD +0.7118 tracked+0.8aligned47 · 47
Nov 1, 24New York Times/Siena College+2For · The New York Times1,527 · LVD-LEAND +4.16 tracked+2.0aligned50 · 45
Nov 1, 24Mainstreet Research/FAU+1699 · LVNEUTRALD +4.74 tracked+0.6aligned49 · 44
Oct 31, 24Morning Consult+2For · Morning Consult1,538 · LVD-LEAND +5.230 tracked+1.8aligned46 · 43
Oct 30, 24AtlasIntel+2For · AtlasIntel1,738 · LVNEUTRALD +0.330 tracked-4.0r lean49 · 46
Oct 30, 24OnMessage800 · LVNEUTRAL46 · 46
Oct 30, 24Data for Progress+1For · Data for Progress908 · LVNEUTRALD +1.151 tracked+0.8aligned49 · 45
Oct 30, 24YouGov947 · LVD-LEAND +3.423 tracked+2.2d lean50 · 44
Oct 30, 24ActiVote+1For · ActiVote400 · LVD-LEAND +3.926 tracked+1.0aligned51 · 50
Oct 29, 24Muhlenberg CollegeFor · Muhlenberg College460 · LVNEUTRALD +0.86 tracked-0.1aligned49 · 46
Oct 29, 24Suffolk University+1For · USA Today500 · LVNEUTRALD +1.221 tracked+0.8aligned49 · 46
Oct 29, 24Marist College+1For · Marist College1,400 · LVD-LEAND +2.025 tracked+1.7aligned50 · 48
Oct 29, 24Echelon Insights+1For · Echelon Insights600 · LVNEUTRALR +1.36 tracked+3.3noisy44 · 47
Oct 29, 24The Washington PostFor · The Washington Post1,204 · LVNEUTRALD +1.45 tracked+0.9aligned49 · 46
Oct 28, 24AtlasIntel+1For · AtlasIntel1,229 · LVNEUTRALD +0.330 tracked-4.0r lean49 · 47
Oct 27, 24Fox NewsFor · Fox News1,057 · LVD-LEAND +2.121 tracked+2.7d lean50 · 48
Oct 27, 24Quinnipiac University+2For · Quinnipiac University2,186 · LVNEUTRALD +0.454 tracked+1.1aligned50 · 47
Oct 27, 24Monmouth University+1For · Monmouth University824 · RVD-LEAND +4.520 tracked+0.7aligned45 · 44
Oct 27, 24CNN/SSRS819 · LVD-LEAND +4.417 tracked+3.0d lean48 · 45
Oct 27, 24CBS News/YouGov+2For · CBS News1,249 · LVD-LEAND +3.416 tracked+1.4aligned48 · 42
Oct 26, 24InsiderAdvantage+1For · InsiderAdvantage800 · LVR-LEANR +2.838 tracked-0.5aligned47 · 47
Oct 25, 24North Star Opinion Research600 · LVNEUTRAL45 · 42
Oct 22, 24UMass Lowell/YouGovFor · UMass Lowell/YouGov800 · LVD-LEAND +3.46 tracked+3.0d lean48 · 42
Oct 21, 24Emerson College+2For · New Emerson College Polling860 · LVNEUTRALD +0.7118 tracked+0.8aligned47 · 46
Oct 21, 24Susquehanna Polling & Research500 · LVNEUTRALR +0.07 tracked+2.3d lean49 · 46
Oct 19, 24Franklin & Marshall College+1For · Franklin & Marshall College Poll583 · LVD-LEAND +4.87 tracked+4.2d lean49 · 48
Oct 18, 24The Trafalgar GroupFor · The Trafalgar Group1,084 · LVR-LEANR +3.553 tracked-2.6r lean47 · 47
Oct 16, 24AtlasIntel+2For · AtlasIntel2,048 · LVNEUTRALD +0.330 tracked-4.0r lean47 · 48
Oct 16, 24The Bullfinch Group+1For · Bullfinch Group600 · LVNEUTRALD +6.33 tracked+5.9d lean50 · 43
Oct 16, 24YouGov1,043 · LVD-LEAND +3.423 tracked+2.2d lean50 · 42
Oct 14, 24Morning Consult+1For · Morning Consult1,395 · LVD-LEAND +5.230 tracked+1.8aligned49 · 41
Oct 9, 24New York Times/Siena College+1For · The New York Times857 · LVD-LEAND +4.16 tracked+2.0aligned48 · 44
Oct 9, 24American Pulse Research & Polling1,193 · LVNEUTRAL48 · 45
Oct 8, 24TIPP Insights+1803 · LVNEUTRAL+2.7decoupled47 · 43
Oct 8, 24UMass Lowell/YouGovFor · UMass Lowell/YouGov800 · LVD-LEAND +3.46 tracked+3.0d lean48 · 39
Oct 7, 24InsiderAdvantage+1For · InsiderAdvantage800 · LVR-LEANR +2.838 tracked-0.5aligned47 · 45
Oct 7, 24Emerson College+1For · Since the last round of Emerson1,000 · LVNEUTRALD +0.7118 tracked+0.8aligned48 · 46
Oct 6, 24Research Co.+1For · Research Co.450 · LVNEUTRALD +1.450 tracked-0.7aligned47 · 44
Oct 6, 24Quinnipiac University+1For · Quinnipiac University1,412 · LVNEUTRALD +0.454 tracked+1.1aligned51 · 43
Oct 6, 24ActiVote+1For · ActiVote400 · LVD-LEAND +3.926 tracked+1.0aligned53 · 47
Sep 28, 24OnMessage800 · LVNEUTRAL45 · 44
Sep 28, 24Patriot PollingFor · Patriot Polling816 · RVR-LEANR +1.410 tracked-3.2r lean51 · 48
Sep 28, 24The Bullfinch Group+1800 · LVNEUTRALD +6.33 tracked+5.9d lean48 · 39
Sep 28, 24The Trafalgar GroupFor · The Trafalgar Group1,090 · LVR-LEANR +3.553 tracked-2.6r lean47 · 46
Sep 27, 24Emerson College+1For · Emerson Polling1,000 · LVNEUTRALD +0.7118 tracked+0.8aligned47 · 45
Sep 24, 24AtlasIntel+2For · AtlasIntel1,775 · LVNEUTRALD +0.330 tracked-4.0r lean47 · 45
Sep 24, 24BSG (R)/GS Strategy Group+1For · Cook Political Report474 · LVD-LEAN+5.8decoupled48 · 42
Sep 23, 24Fox NewsFor · Fox News775 · LVD-LEAND +2.121 tracked+2.7d lean53 · 44
Sep 23, 24Fabrizio Ward (R)/Impact Research+1816 · RVD-LEAN+0.8aligned49 · 45
Sep 21, 24Susquehanna Polling & Research700 · LVNEUTRALR +0.07 tracked+2.3d lean48 · 40
Sep 19, 24RMG Research783 · LVD-LEAND +6.68 tracked+2.6d lean50 · 44
Sep 19, 24Remington Research Group+1800 · LVNEUTRALD +0.211 tracked+1.6aligned49 · 45
Sep 18, 24Muhlenberg CollegeFor · Muhlenberg College450 · LVNEUTRALD +0.86 tracked-0.1aligned48 · 43
Sep 18, 24Redfield & Wilton StrategiesFor · Redfield & Wilton Strategies1,086 · LVD-LEAND +5.35 tracked-0.1aligned47 · 41
Sep 18, 24UMass Lowell/YouGovFor · UMass Lowell/YouGov800 · LVD-LEAND +3.46 tracked+3.0d lean47 · 38
Sep 17, 24Emerson College+1For · Emerson Polling880 · LVNEUTRALD +0.7118 tracked+0.8aligned47 · 42
Sep 17, 24MassINC Polling GroupFor · Spotlight PA800 · LVNEUTRAL-1.3aligned49 · 42
Sep 17, 24Morning Consult+2For · Morning Consult1,756 · LVD-LEAND +5.230 tracked+1.8aligned49 · 40
Sep 16, 24Marist College+2For · Marist College1,663 · RVD-LEAND +2.025 tracked+1.7aligned52 · 46
Sep 15, 24Quinnipiac University+1For · Quinnipiac University1,331 · LVNEUTRALD +0.454 tracked+1.1aligned52 · 43
Sep 15, 24The Washington PostFor · The Washington Post1,003 · LVNEUTRALD +1.45 tracked+0.9aligned47 · 46
Sep 15, 24New York Times/Siena College+1For · The New York Times1,082 · RVD-LEAND +4.16 tracked+2.0aligned48 · 39
Sep 14, 24InsiderAdvantage+1For · InsiderAdvantage800 · LVR-LEANR +2.838 tracked-0.5aligned49 · 44
Sep 14, 24Franklin & Marshall College+1For · Franklin & Marshall College Poll890 · RVD-LEAND +4.87 tracked+4.2d lean48 · 40
Sep 13, 24Suffolk University+1For · USA Today500 · LVNEUTRALD +1.221 tracked+0.8aligned47 · 43
Sep 8, 24Redfield & Wilton StrategiesFor · Redfield & Wilton Strategies801 · LVD-LEAND +5.35 tracked-0.1aligned44 · 36
Sep 7, 24Morning Consult+2For · Morning Consult1,910 · LVD-LEAND +5.230 tracked+1.8aligned49 · 40
Sep 5, 24co/efficientFor · co/efficient889 · LVR-LEANR +5.413 tracked-3.4r lean45 · 36
Sep 5, 24CBS News/YouGov+2For · CBS News1,076 · LVD-LEAND +3.416 tracked+1.4aligned48 · 41
Sep 2, 24YouGov1,000 · RVD-LEAND +3.423 tracked+2.2d lean52 · 41
Aug 29, 24The Trafalgar GroupFor · The Trafalgar Group1,082 · LVR-LEANR +3.553 tracked-2.6r lean46 · 45
Aug 28, 24CNN/SRSS+1For · CNN789 · LVNEUTRAL+2.1d lean46 · 46
Aug 27, 24Redfield & Wilton StrategiesFor · Redfield & Wilton Strategies1,071 · LVD-LEAND +5.35 tracked-0.1aligned44 · 38
Aug 27, 24Emerson College+1For · Emerson Polling950 · LVNEUTRALD +0.7118 tracked+0.8aligned48 · 44
Aug 22, 24SoCal Strategies713 · LVNEUTRAL+2.9d lean47 · 41
Aug 22, 24ActiVote+1For · ActiVote400 · LVD-LEAND +3.926 tracked+1.0aligned55 · 45
Aug 20, 24Fabrizio Ward400 · LVNEUTRAL46 · 43
Aug 14, 24Cygnal800 · LVNEUTRALD +1.954 tracked+1.2aligned46 · 42
Aug 14, 24Redfield & Wilton StrategiesFor · Redfield & Wilton Strategies825 · LVD-LEAND +5.35 tracked-0.1aligned44 · 36
Aug 13, 24Emerson College+1For · Emerson Polling1,000 · LVNEUTRALD +0.7118 tracked+0.8aligned48 · 44
Aug 11, 24Quinnipiac University+2For · Quinnipiac University1,738 · LVNEUTRALD +0.454 tracked+1.1aligned52 · 44
Aug 10, 24The Bullfinch Group+1500 · RVNEUTRALD +6.33 tracked+5.9d lean51 · 39
Aug 10, 24Franklin & Marshall College920 · RVD-LEAND +4.87 tracked+4.2d lean48 · 36
Aug 8, 24New York Times/Siena College+1For · The New York Times693 · RVD-LEAND +4.16 tracked+2.0aligned50 · 36
Aug 2, 24Redfield & Wilton StrategiesFor · Redfield & Wilton Strategies743 · LVD-LEAND +5.35 tracked-0.1aligned45 · 40
Aug 1, 24BSG (R)/GS Strategy Group+1For · Cook Political Report411 · LVD-LEAN+5.8decoupled53 · 40
Jul 27, 24Susquehanna Polling & ResearchFor · RealClearPolitics600 · LVNEUTRALR +0.07 tracked+2.3d lean47 · 42
Jul 23, 24Fox NewsFor · Fox News1,034 · RVD-LEAND +2.121 tracked+2.7d lean55 · 42
Jul 23, 24Redfield & Wilton StrategiesFor · Redfield & Wilton Strategies851 · LVD-LEAND +5.35 tracked-0.1aligned46 · 39
Jul 22, 24Emerson College+2For · New Emerson College Polling850 · RVNEUTRALD +0.7118 tracked+0.8aligned48 · 44
Jul 20, 24SoCal Strategies500 · LVNEUTRAL+2.9d lean50 · 40
Jul 17, 24Public Policy Polling+2For · Politico624 · RVNEUTRALD +0.9104 tracked+2.4noisy50 · 39
Jul 17, 24Redfield & Wilton StrategiesFor · Redfield & Wilton Strategies688 · LVD-LEAND +5.35 tracked-0.1aligned44 · 37
Jul 11, 24Public Policy Polling+1537 · RVNEUTRALD +0.9104 tracked+2.4noisy47 · 44
Jul 11, 24YouGov1,000 · RVD-LEAND +3.423 tracked+2.2d lean50 · 38
Jul 10, 24New York Times/Siena College+1For · The New York Times872 · RVD-LEAND +4.16 tracked+2.0aligned50 · 39
Jul 7, 24Expedition Strategies+1284 · LVNEUTRAL48 · 45
Jun 30, 24Remington Research Group+1673 · LVNEUTRALD +0.211 tracked+1.6aligned49 · 48
Jun 27, 24CygnalFor · Cygnal800 · LVNEUTRALD +1.954 tracked+1.2aligned46 · 42
Jun 18, 24The Bullfinch Group+1800 · RVNEUTRALD +6.33 tracked+5.9d lean48 · 36
Jun 17, 24Emerson College+2For · New Emerson College Polling1,000 · RVNEUTRALD +0.7118 tracked+0.8aligned47 · 41
Jun 5, 24Marist College+1For · Marist College1,181 · RVD-LEAND +2.025 tracked+1.7aligned52 · 46
May 30, 24Mainstreet Research/FAU+11,012 · RVNEUTRALD +4.74 tracked+0.6aligned48 · 40
May 18, 24KAConsulting600 · RVR-LEANR +3.68 tracked-2.3r lean47 · 37
May 12, 24BSG (R)/GS Strategy Group+1For · Cook Political Report730 · LVD-LEAN+5.8decoupled49 · 41
May 8, 24New York Times/Siena College+1For · The New York Times1,023 · RVD-LEAND +4.16 tracked+2.0aligned46 · 41
Apr 29, 24Fabrizio Ward (R)/Impact Research+11,398 · LVD-LEAN+0.8aligned48 · 44
Apr 28, 24Emerson College+2For · New Emerson College Polling1,000 · RVNEUTRALD +0.7118 tracked+0.8aligned46 · 42
Apr 24, 24CBS News/YouGov+2For · CBS News1,306 · LVD-LEAND +3.416 tracked+1.4aligned46 · 39
Apr 24, 24Muhlenberg CollegeFor · Muhlenberg College417 · RVNEUTRALD +0.86 tracked-0.1aligned45 · 41
Apr 2, 24The Bullfinch Group+1600 · RVNEUTRALD +6.33 tracked+5.9d lean45 · 38
Mar 30, 24Franklin & Marshall College+1For · Franklin & Marshall College Poll431 · RVD-LEAND +4.87 tracked+4.2d lean46 · 39
Mar 25, 24The Bullfinch Group+1800 · RVNEUTRALD +6.33 tracked+5.9d lean47 · 30
Mar 12, 24Emerson College+1For · Emerson Polling1,000 · RVNEUTRALD +0.7118 tracked+0.8aligned52 · 48
Mar 6, 24Susquehanna Polling & ResearchFor · RealClearPolitics450 · LVNEUTRALR +0.07 tracked+2.3d lean48 · 42
Feb 15, 24Emerson College+1For · Emerson Polling1,000 · RVNEUTRALD +0.7118 tracked+0.8aligned49 · 39
Feb 7, 24Chism Strategies500 · RVNEUTRAL38 · 37
Jan 27, 24Franklin & Marshall College1,006 · RVD-LEAND +4.87 tracked+4.2d lean47 · 35
Jan 24, 24Public Opinion Strategies+1For · PoliticsPA800 · LVNEUTRALR +7.33 tracked-2.7r lean47 · 40
Jan 20, 24Susquehanna Polling & ResearchFor · RealClearPolitics745 · LVNEUTRALR +0.07 tracked+2.3d lean46 · 42
Jan 7, 24Quinnipiac University+2For · Quinnipiac University1,680 · RVNEUTRALD +0.454 tracked+1.1aligned53 · 43
Dec 11, 23The Bullfinch Group+1800 · RVNEUTRALD +6.33 tracked+5.9d lean42 · 27
Dec 6, 23Change Research+22,532 · RVD-LEAND +3.718 tracked+5.7noisy44 · 41
Oct 21, 23Franklin & Marshall College+1For · Franklin & Marshall College Poll873 · RVD-LEAND +4.87 tracked+4.2d lean46 · 39
Oct 3, 23Emerson College+1For · Emerson Polling430 · RVNEUTRALD +0.7118 tracked+0.8aligned41 · 33
Oct 1, 23Quinnipiac University+2For · Quinnipiac University1,725 · RVNEUTRALD +0.454 tracked+1.1aligned50 · 44
May 7, 23Susquehanna Polling & ResearchFor · RealClearPolitics700 · LVNEUTRALR +0.07 tracked+2.3d lean53 · 41
Apr 12, 23Cygnal+1For · Politico600 · LVNEUTRALD +1.954 tracked+1.2aligned46 · 41
Apr 6, 23Franklin & Marshall College+1For · Franklin & Marshall College Poll643 · RVD-LEAND +4.87 tracked+4.2d lean42 · 35
· 136 polls · 10 per page

Endorsements · 40 total

Source · Wikipedia · 1 candidate with no endorsements yet
40Jr. · 100%
DBob Casey Jr.40 endorsers
Most notable · Gretchen Whitmer · Governor of Michigan (2019-present)
Organizations18
Other15
Elected officials6
Federal 4State 2Local 0
Newspapers1
RDave McCormick0 endorsers
no endorsers yet
No endorsements found yet. Endorsements come from the candidate's Wikipedia article (when one exists) and update with the daily scrape.

Money raised · own committees

FEC Schedule E (independent expenditures) + candidate-committee totals · last filing 2024-12-30
Dave McCormickS2PA00661 ↗
Receipts
$36.0M
Disburse
$35.4M
Cash on hand
$605.5K
Debts
$20.5M
Securities & investment$411.1K
INFORMATION REQUESTED PER BEST EFFORTS$357.9K
GOLDMAN SACHS$335.3K
ELLIOTT MANAGEMENT$59.5K
ENTREPRENEUR$45.9K
BLACKSTONE$43.2K
Bob Casey Jr.S6PA00217 ↗
Receipts
$58.1M
Disburse
$60.2M
Cash on hand
$995.0K
Debts
$0
Education$269.0K
Lawyers / law firms$227.0K
Internet$65.5K
Securities & investment$58.5K
UNIVERSITY OF PENNSYLVANIA$127.3K
KESSLER TOPAZ MELTZER & CHECK, LLP$92.4K
ROSS FELLER CASEY, LLP$91.5K
UNIVERSITY OF PITTSBURGH$86.7K
GOOGLE, INC.$65.5K

Outside spending · independent expenditures

FEC Schedule E (independent expenditures) + candidate-committee totals · 24/48-hr IE reports
IE total
$72.7M
D side
$52.6M · 72%
R side
$20.1M · 28%
Top spender
WINSENATE
For / against split
For Jr. $4.0M
Against McCormick $48.6M
Against Jr. $5.0M
For McCormick $15.1M
SpenderSideAmountShareTarget
WINSENATED$42.5M58%against Dave McCormick
AMERICANS FOR PROSPERITY ACTION, INC. (AFP ACTION) DBA CVA ACTION AND DBA LIBRE ACTIONR$15.8M22%for Dave McCormick
DEFEND OUR CONSTITUTION PACD$4.7M6%against Dave McCormick
FOR OUR FUTURED$2.2M3%for Bob Casey Jr.
KEYSTONE RENEWAL PACR$1.2M2%for Dave McCormick
COMMON SENSE FOR AMERICA PACR$975.2K1%for Dave McCormick
LCV VICTORY FUNDD$612.2K1%for Bob Casey Jr.
WORKING FAMILIES PARTY PACD$590.6K1%for Bob Casey Jr.
CASA IN ACTION PACD$350.2K0%for Bob Casey Jr.

Editorial ratings · 9 raters

Cook · Sabato · Inside Elections · 538 · DDHQ et al.
Lean D5
Tilt D1
Tossup3
CNalysis
Lean D
Nov 20
The Cook Political Report
Tossup
Oct 20
Decision Desk HQ / The Hill
Tossup
Jun 7
Elections Daily
Lean D
Oct 23
538
Lean D
Oct 27
Inside Elections
Tilt D
Nov 8
RealClearPolitics
Tossup
Aug 4
Sabato's Crystal Ball
Lean D
Jun 12
Split Ticket
Lean D
Oct 22

Demographic crosstabs

age · education · race · gender
No demographic crosstabs published for this race yet. Most pollsters release only topline numbers; subgroup breakdowns (age, education, race, gender) appear here when a pollster publishes them.
Rating timeline
May 11, 2026Lean Dmodel
Verification trail
Polls verified135 / 136deterministic
Polls flagged1needs review
Markets ingested0 platformsnone listed
FEC filingssyncedcommittee + IE · 2024-12-30
Endorsements40 totalWikipedia scrape
News coverage< 5 articlesGoogle News
Method · bounds + percentage totals + date-order checks